Fastest RAID0 for loading times?

hey, im in the process of buying a new PC and want to RAID0 some HDD's, but cant seem to find an answer on what would be the fastest for load times (like loading into the OS or a game). I was considering raptors, but have been reading they are a bit old and not actually that good anymore..

Suggestions?

Price or storage not that important, only want OS and a few installs on them